Is the GST calculator free?

Yes. GST Calculator is completely free — 0 credits, no account needed.

Which GST slabs does it support?

All four GST slabs: 5%, 12%, 18%, and 28%. Plus 0% for exempt goods.

Does it calculate CGST and SGST separately?

Yes. For intrastate transactions, it shows CGST (half of GST rate) and SGST (half of GST rate) separately. For interstate, it shows IGST.

Can I calculate reverse GST (GST-inclusive to exclusive)?

Yes. Enter the GST-inclusive amount and select the rate — it calculates the base amount and GST component.

Is it updated for the latest GST rates?

The calculator covers the four standard slabs. For special rates on specific goods (like petroleum, gold), verify on the GST Council website.

Can I use this for GST return filing?

Use it for reference and verification. Actual GST return filing must be done through the GST portal (gst.gov.in).

Free GST Calculator India — Instant GST Calculation for All Slabs

Whether you are pricing your services, verifying a vendor invoice, or settling a client dispute about tax amounts, instant GST calculation is a daily need for Indian businesses. SetuLix GST Calculator is completely free — no account needed, instant results, no submit button required. Enter your base amount or GST-inclusive amount, select the applicable GST slab (5%, 12%, 18%, or 28%), and choose between intrastate (CGST+SGST) or interstate (IGST). The GST amount, CGST, SGST or IGST, and final total appear instantly. Reverse GST calculation (from GST-inclusive price to base amount) is also supported. Used by Indian SME owners pricing products and services, chartered accountants and bookkeepers verifying vendor invoices during audits, and individuals calculating the tax component on high-value purchases like electronics, restaurant bills, or professional services. Completely free, no credits required, no account needed. The fastest GST calculator for Indian businesses.

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How it works

Enter amount and GST rate

Enter the base amount or GST-inclusive amount and select the applicable GST slab: 5%, 12%, 18%, or 28%.

Instant calculation

GST amount, CGST, SGST (or IGST), and the final total are calculated instantly — no submit button needed.

Use the result

Use the calculated amounts for your invoice, pricing sheet, or GST return verification.

Who uses this tool

Business owners pricing products and services

SME owners calculate GST-inclusive prices to display to customers and GST-exclusive amounts for their records.

CAs and accountants verifying invoices

Chartered accountants quickly verify GST amounts on vendor invoices during audits and reconciliations.

Individuals checking GST on purchases

Individuals calculate the GST component on high-value purchases like electronics, vehicles, or restaurant bills.

Frequently asked questions

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